[QGIS-Developer] Fwd: GRASS in QGIS

[Andreas Neumann]

Hi Nyall,

Thank you for this clarification.

Andreas

On 2026-10-12 01:43, Nyall Dawson wrote:
>> Those who do need GRASS however, should still have easy access to it
>> 
>> with a separate easy to use installer.
> 
> This isn't so straightforward -- it's not like the SAGA or OTB
> situations, where a user can easily download those as separate
> installers and then activate a QGIS plugin. The GRASS support has to
> be compiled into QGIS to work, so if GRASS were removed from the
> default install then there'd be no way for a user to re-activate this
> functionality. We'd need to maintain two completely separate
> downloaders and installers for "QGIS" and "QGIS with GRASS".
> 
> Nyall
> 
>> I will raise this issue at the next PSC meeting.
>> 
>> Andreas
>> 
>> On 2026-10-11 13:00, Stefan Keller via QGIS-Developer wrote:
>>> Please allow me to comment on this for the attention of those
>> involved.
>>> While I am not a QGIS C++ developer, I have developed over half a
>>> dozen Python plugins and teach QGIS to users who mostly use
>> Windows.
>>> I use GRASS r.sun in a project (and the original GRASS docs
>>> was good) and value it for specialized analyses, particularly in
>> the
>>> fields of scientific computing like photovoltaics and hydrology.
>>> 
>>> However, I have a request, primarily for the QGIS maintainers:
>> GRASS
>>> should be a separate plugin that isn’t installed by default, as
>> is
>>> currently the case at least on Windows. GRASS doubles the size of
>> the
>>> QGIS distribution and installation, which, in my opinion, makes
>> QGIS
>>> unnecessarily "heavy" for the majority of QGIS users.
>>> 
>>> --Stefan
>>> 
>>> Am Do., 8. Okt. 2026 um 06:04 Uhr schrieb DelazJ via
>> QGIS-Developer
>>> <qgis-developer at lists.osgeo.org>:
>>>> 
>>>> Hi devs,
>>>> We are currently updating the GRASS chapter in QGIS docs [1], a
>>>> chapter left untouched for more than a decade, and we would have
>> some
>>>> questions:
>>>> 
>>>> 1- Can someone remind us why the "GRASS 8" plugin in the Plugins
>>>> Manager is labeled as deprecated? What are the actual plans?
>> Afaict
>>>> there are lots of features not yet ported to Browser panel or
>>>> Processing (mapset/project handling, digitizing,...).
>>>> 
>>>> 2- Considering the plugin name, is GRASS 8 the only supported
>> version
>>>> in QGIS? No older releases?
>>>> 
>>>> 3- What are the requirements to get the "GRASS 8" or the "GRASS
>> GIS
>>>> Processing" plugins available in the Plugins Manager? I've always
>> 
>>>> thought both were listed by default in every installation and
>> would
>>>> only work if and only if GRASS software is installed and
>> configured,
>>>> but having checked on different machines in the docs team
>> (Windows
>>>> standalone and OSGeo4W, macOS, self-build on Trixie, nixOS), with
>> 
>>>> GRASS installed or not installed, we got different results I
>> couldn't
>>>> figure out the logic behind the scene. Thanks for any
>> clarification.
>>>> 
>>>> 4- There is no real GRASS user in the team so while refactoring
>> the
>>>> chapter, we reuse some texts that may no longer be true. Reviews
>> for
>>>> the docs pull requests [2] by better informed people are more
>> than
>>>> welcome. FYI I split the updates into smaller PRs in the hope of
>>>> attracting reviewers, even those in a hurry.
>>>> 
>>>> Thanks for any reply...
>>>> 
>>>> [1]
>>>> 
>> 
> https://docs.qgis.org/testing/en/docs/user_manual/grass_integration/grass_integration.html
>>>> [2]
>>>> 
>> 
> https://github.com/qgis/QGIS-Documentation/pulls?q=is%3Apr+state%3Aopen+label%3AGrass
>>>> 
>>>> Regards,
>>>> Harrissou
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